Whole-home duct cleaning
Dryer vent cleaning
Camera inspection
Sanitizing & deodorizingWhole-system duct and dryer vent check with before-and-after photos - you see exactly what came out of your vents
That "$99 whole-house special" is a bait ad - the real number appears once they are in your hallway, or the "clean" is a shop-vac at the register. We photograph the inside of your ducts before and after instead.
Lennox Air Duct Cleaning in South San Jose, CA
Lennox air duct cleaning in South San Jose means dealing with a specific kind of house: 1960s through 1980s tract homes where original rigid galvanized ductwork has been pulling valley dust for decades. We’re an independent Lennox service provider, not manufacturer-affiliated or authorized, and our teams work on those legacy systems from the attic to the closet air handler. Call (855) 506-8636 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Why South San Jose Residents Choose Us for Lennox Service
Rodney Soto, our owner, grew up near Berryessa in North San Jose and completed his HVAC and building systems coursework at Evergreen Valley College before spending well over a decade learning how residential duct systems actually fail. That matters in South San Jose, where the housing stock leans heavily on ranch and two-story stucco homes with tight attics and closet-based air handlers. We’ve worked on Lennox systems since the days of the original G-series furnaces, so we know their ducted air handlers, coils, and control boards inside and out, without any factory authorization. We use professional Rotobrush and Nikro systems, the same rotary-brush and HEPA-vacuum equipment used by industrial contractors, not consumer shop-vacs. When we find compromised ductwork, we repair it rather than clean around it. See what’s inside your ducts before and after, because better air starts at the source.
Styles & brands we work with
- Whole-home duct cleaning
- Dryer vent cleaning
- Camera inspection
- Sanitizing & deodorizing
Common Lennox Air Duct Cleaning Problems We Solve in South San Jose
- Seam separation and pinhole leaks at duct joints. Original Lennox rigid galvanized ductwork in 1960s-1980s South San Jose tract homes develops leaks at seams and joints over time. Those leaks pull attic dust and fiberglass particles directly into the supply stream, which means the air blowing through your registers carries whatever is sitting in your attic. We seal those joints with mastic and repair the runs, then clean the full system.
- Crushed or disconnected flex-duct runs behind drywall chases. Lennox air handlers installed in tight closets or attics often have flex duct that gets crushed during remodels or just settles over decades. That restriction spikes static pressure and strains the blower motor and evaporator coil. We find these with camera inspection before cleaning, because cleaning around a collapsed run does nothing for airflow.
- Debris-clogged evaporator coils on older G-series furnaces. Older Lennox G-series furnaces with A-frame evaporator coils above the heat exchanger trap debris that clogs coil fins. During AC season that reduced airflow can lead to frozen coils or high-limit trips. We clean the coil as part of the job when it’s accessible, because a clean duct run feeding a clogged coil is half a repair.
- Undersized or collapsed return-air flex connectors. Lennox return-air plenums in these homes frequently have restricted connectors that choke return airflow. You’ll hear whistle noise at the return and feel uneven room temperatures. We identify the restriction, repair or replace the connector, and then verify static pressure looks right.
- Legacy ductwork in uninsulated attics. In South San Jose, some original Lennox rigid trunks run through attic spaces that bake in summer. The heat accelerates sealant failure at every joint, and valley dust gets pulled in through the failures. That’s a duct sealing job before it’s a cleaning job, and we do both.
Lennox Service in South San Jose: What Local Conditions Mean for Your Equipment
In South San Jose’s 1960s-1980s tract homes, the original Lennox rigid duct trunks often run through uninsulated attic spaces that bake at 140°F in summer. That heat is the quiet enemy of your duct system. Sealant dries, cracks, and loses its grip at every joint. Once a seam opens, the return-side negative pressure pulls in whatever is up there: fiberglass particles, decades of dust, pollen that settled during Santa Clara Valley’s warm, dry summers. Newer flex-duct subdivisions don’t face this the same way, because their runs are shorter, newer, and often insulated differently. But near corridors like Blossom Hill Road, where the ranch homes sit with original sheet metal, the pattern repeats job after job. Lennox owners in these neighborhoods need more than a routine cleaning. They need seam sealing, flex repair where remodel-era shortcuts created restrictions, and coil cleaning to restore airflow that’s been degrading for thirty years. That’s the actual work.
Lennox Models & Products We Service in South San Jose
We service the Lennox products we encounter in South San Jose homes: Merit Series, Elite Series, Signature Collection, and the older G-series furnaces that still run in many tract houses. Our techs understand those ducted air handlers, coils, and control boards. When a part needs replacing, we use OEM-equivalent Lennox-compatible gaskets, flex duct, and mastic sealants for ducts and air handlers. We use OEM coils, blower motors, and control boards when a direct fit is critical to performance and safety. On older Lennox systems with multiple duct and coil issues, we give you an honest repair-versus-replace comparison. Often sealing and cleaning can extend life for years. When the heat exchanger or coil is failing, replacement may be the smarter money. We’ll tell you which one we’d choose if it were our house.
See the difference
Before
After
Before
After
Before
AfterLennox Service Pricing in South San Jose
Every job gets a written estimate before work starts, and that’s the price. No per-vent charges, no surprise add-ons once the van is parked. What drives cost in South San Jose is what we actually find: a straightforward cleaning of an accessible system costs less than a job that includes evaporator coil cleaning, flex duct repair in a tight closet chase, or full seam sealing on a 1970s trunk run. The estimate is free, and we’ll show you what the camera sees before we quote anything. Call (855) 506-8636 for an exact quote, and we’ll walk you through what your Lennox system actually needs.
| Service item | Typical range in South San Jose |
|---|---|
| Whole-system air duct cleaning, single Lennox system | $450 – $1,200 |
| Evaporator coil cleaning (add-on when accessible) | $200 – $500 |
| Flex duct repair, per run | $150 – $400 |
| Duct seam sealing with mastic (trunk and branches) | $400 – $1,000 |
| Dryer vent cleaning (standalone) | $125 – $250 |
These are estimated ranges. Your written estimate sets the final price.
Serving South San Jose, CA – Our Local Coverage Area
We serve South San Jose and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs – Lennox Air Duct Cleaning in South San Jose
Every 3 to 5 years for most single-family tract homes from the 1960s through 1980s, especially when the original rigid galvanized ducts are still in place. Santa Clara Valley’s warm, dry summers and seasonal valley dust plus pollen from nearby freeway corridors push more debris into return-air systems than most homeowners expect. If you’re unsure whether it’s time, call (855) 506-8636 for a free estimate and we’ll inspect what’s actually inside.
Yes. Crushed or disconnected flex runs behind drywall chases are one of the most common problems we find in South San Jose retrofit-era homes. We locate the restriction with camera inspection, access it through the closet or attic as needed, and replace or repair the run. The repair restores proper static pressure and takes strain off the blower motor.
A whistle or uneven airflow typically points to a return-air restriction that existed before cleaning, or a flex connector that collapsed during the job if it was already brittle. We verify static pressure after any cleaning and inspect return plenums and connectors as part of the work. If the issue was pre-existing, we’ll find it and explain the fix. Call (855) 506-8636 and we’ll diagnose what’s going on.
We do when the coil is accessible without damaging the air handler or surrounding framing. On older Lennox G-series furnaces with A-frame coils above the heat exchanger, debris clogs the fins and restricts airflow. We access the coil through the service panel, clean it with appropriate tools, and verify airflow after. Tight attics slow the work, but they don’t stop it.
If a camera inspection or visual check shows a dirty heat exchanger, we can often clean it as part of a broader service. A cracked heat exchanger is a different matter: that’s a safety issue, and we’ll recommend replacement rather than cleaning. We do not attempt to patch or repair a cracked heat exchanger. Call (855) 506-8636 for a free estimate and we’ll give you an honest read on what you’re dealing with.
Service Areas Near South San Jose
We serve South San Jose and the surrounding communities, including North San Jose, Alviso, Downtown San Jose, Central San Jose, Spartan Keyes, and East San Jose.
Book Your Lennox Service in South San Jose Today
If you don’t know what’s in your ducts, you’re guessing at your air quality. Call (855) 506-8636 for a free estimate. We answer 24/7. Fast dispatch from 7am to 7pm, Sunday through Friday.
Written by Rodney Soto, Owner at Elmwood Air Duct Cleaning, serving South San Jose since 2018.